Home / 438,877,257.40-658,294,890.90-147,715,823.80

Finding the Fourth Proportional to 438,877,257.40, 658,294,890.90 and 147,715,823.80

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Solution

The fourth proportional to 438,877,257.40, 658,294,890.90 and 147,715,823.80 is: 221,566,669.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,877,257.40 : 658,294,890.90 = 147,715,823.80 : x
  2. Step 2: Convert to fraction form
    438,877,257.40/658,294,890.90 = 147,715,823.80/x
  3. Step 3: Cross multiply
    438,877,257.40x = 658,294,890.90 × 147,715,823.80
  4. Step 4: Simplify right side
    438,877,257.40x = 97,240,572,112,624,624
  5. Step 5: Solve for x
    x = 97,240,572,112,624,624/438,877,257.40
  6. Step 6: Final answer
    x = 221,566,669.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.